baber/WOPTO huggingface dataset:
Patent CA-1218643-A (CA)
Inventor: BURR BRUCE H
IPC: E21B10/25
Filed: 1984-08-08
Granted: 1987-03-03
Abstract: ABSTRACT      An earth boring bit having a pressure compensating seal assembly which includes a resilient packing ring, a rigid backup ring and a wave spring to permit axial displacement of the resilient ring in an elongated seal groove while re-sisting destructive distortions of the resilient ring.  The lubrication system has a lubricant volume correlated with the volume of the passages and spaces and the maximum seal displacement.  A measured amount of lubricant is withdrawn from the system during assembly for subsequent compression as the bit is lowered into a liquid-filled bore hole to position the seal assembly intermediate the end walls of the seal groove.
Patent CA-1244692-A (CA)
Inventor: MIYAZAKI HIDEAKI
IPC: G02B6/44
Filed: 1984-08-21
Granted: 1988-11-15
Abstract: Abstract of the Disclosure Structure for connecting overhead earth wires with an optical fiber unit is proposed which comprises a protecting member for protecting the optical fiber unit from deformation.          The protecting member is formed with a through hole for passing the optical fiber unit and with longitudinal grooves to receive the conductors.
Patent CA-1219492-A (CA)
Inventor: MARQUARDT RICHARD H
IPC: A23L11/30
Filed: 1984-09-24
Granted: 1987-03-24
Abstract: ABSTRACT           A roaster for grain or other particulate material.  A chute is provided to feed particles adjacent the bottom of a rotating drum to reduce particle bouncing and unwanted agglomeration and to improve roasting uniformity.  Vanes are provided longitudinally within the drum at an angle to lines parallel to the drum axis to improve roasting efficiency.
Patent CA-1218705-A (CA)
Title: Gas measuring probe
Inventor: MCINTYRE WILLIAM H
IPC: G01N27/30
Filed: 1984-10-05
Granted: 1987-03-03
Abstract: 16                  51,219 ABSTRACT OF THE INVENTION The invention provides both preferred material alloys and electrode lead wire configurations for elec-trically connecting the solid electrolyte cell in a gas sensing probe to a remote measuring circuit.
Patent CA-1258745-A (CA)
Inventor: NGUYEN TUYEN T
IPC: C08F4/00
Filed: 1984-11-15
Granted: 1989-08-22
Abstract: METHOD FOR MAKING A DICYCLOPENTADIENE CROSSLINKED POLYMER     Abstract of the Disclosures Disclosed is a method of making a crosslinked poly (dicyclopentadiene) with a metathesis-catalyst system, where the metathesis-catalyst system contains an organoaluminum or organoaluminum halide activator and a pentavalent tantalum catalyst.  In a preferred embodiment, the crosslinked polymer is formed by combining, in a first place, a plurality of reac-tant streams, one reactant stream which contains the activator, a second reactant stream which contains the catalyst and at least one reactant stream which contains dicyclopentadiene; then injecting the combined reactant streams into a second place, such as a mold, where polymerization occurs.  Use of the pentavalent tantalum catalyst results in the formation of a crosslinked polymer having less color and greater transparency than crosslinked poly(dicyclopentadiene) made without a pentavalent tantalum catalyst.
Patent CA-1224252-A (CA)
Inventor: LISH CHARLES A
IPC: H03H19/00
Filed: 1985-01-10
Granted: 1987-07-14
Abstract: SWITCHED CAPACITOR FILTER     Abstract of the Disclosure A band-pass filter includes an arrangement of individual filter sections and means for weighting and summing the band-pass functions of the filter sections such that the active conjugate pole pairs are arranged in the z plane on a circle concentric to the unit circle and spaced by equal angles with the exception of corrector poles, which are spaced by half-angle increments from the adjacent poles.  In the embodiment of the invention described, the filter sections are in the form of digitally controlled switched capacitor filters.
Patent CA-1236076-A (CA)
Inventor: FIATO ROCCO A
IPC: B01J23/78
Filed: 1985-02-05
Granted: 1988-05-03
Abstract: COBALT-PROMOTED FISCHER-TROPSCH CATALYSTS            ABSTRACT OF THE DISCLOSURE     Iron-cobalt spinels which contain low levels of cobalt, in an iron/cobalt atomic ratio of 7:1 to 35:1, are converted to Fischer-Tropsch catalysts upon reduction and carbiding that exhibit high activity and selectivity to C2-C6 olefins and low CH4 production.
Patent CA-1245183-A (CA)
Inventor: FOURNIER EUGENE W
IPC: G03G5/082
Filed: 1985-02-14
Granted: 1988-11-22
Abstract: ABSTRACT OF THE DISCLOSURE    There are disclosed a method and apparatus for depositing a layer of material onto the outer surfaces of a plurality of cylindrical members. The cylindrical members are arranged to form a substantially closed loop with the longitudinal axes thereof disposed substantially parallel and the outer surfaces of adjacent members being closely spaced apart to form an inner chamber which is substantially closed.  Adjacent cylin-drical members form narrow passages which communi-cate with the inner chamber.  At least one reac-tion gas is introduced into the inner chamber through at least one of the narrow passages and a plasma is formed from the at least one reaction gas within the inner chamber to deposit the layer of material onto the outer surfaces of the cylin-drical members.  The plasma can be formed by using either microwave energy or radio frequency ener-gy.  More particularly disclosed is a method and apparatus for making electrophotographic drums.
Patent CA-1249281-A (CA)
Inventor: BERNER HEINZ
IPC: A61K31/426
Filed: 1985-02-15
Granted: 1989-01-24
Abstract: PLEUROMUTILIN DERIVATIVES PROCESS FOR THEIR PREPARATION AND THEIR USE          Abstract of the Disclosure A compound of formula I                      I     wherein R1 represents ethyl or vinyl and and R2 represents a five membered saturated heterocycle or amino-alkyl unsubstituted or substituted in its alkyl moiety by hydroxy, in free form or in the form of an acid addition or quaternary salt, which compounds are indicated for use as chemotherapeutic agents e.g. as anti-bacterially active antibiotics and as veterinary agents e.g. in combatting microorganism infections and promoting growth in domestic animals.
Patent CA-1224064-A (CA)
Inventor: PARKINSON NEIL
IPC: G01L1/10
Filed: 1985-02-18
Granted: 1987-07-14
Abstract: VIBRATING WIRE STRAIN GAUGE ASSEMBLIES FOR UNDERWATER ATTACHMENT     ABSTRACT OF THE DISCLOSURE            A system comprises a pair of straps which are preferably hinged and are arranged to be clamped around a structure, for example, a  tubular member to be strain gauged, and secured, for example, by means of a single swing bolt with a diver sized hand knob.  Across these two straps are a number of, for example, two sets of four equally spaced arranged strain gauge assemblies, aligned along the longitudinal axis of the tubular member.  Vibrating wire strain gauges are uniformly suspended by compression springs from a protective cover.          Because such compression springs are relatively free to move laterally by small amounts, they do not significantly increase the axial stiffness of the strain gauge.  The protective cover is attached to the two clamping straps by set bolts with diver sized hand knobs.  When tightened  the strain gauge will be pressed onto the member surface with the pre-determined spring force.  The protective cover is skirted by sealing, which, after installation will seal around the gauges offering complete mechanical protection plus protection from marine fouling.
Patent CA-1256871-A (CA)
Inventor: YEVICH JOSEPH P
IPC: C07D317/12
Filed: 1985-03-06
Granted: 1989-07-04
Abstract: Abstract of the Disclosure Disubstitued N,N-piperazinyl derivatives are disclosed wherein one substituent is a pyrimidin-2-yl ring and the other is a 4 carbon chain attached to a p-fluorophenyl ring at the terminal carbon.  The terminal carbon of this butylene chain is also bonded to an oxygen atom as part of a carbonyl, carbinol, or ketal functionality.  These compounds possess psychotropic properties, particularly atypical antipsychotic activity of good duration.  By virtue of pre-clinical pharmacological testing, these compounds appear useful as potential antipsychotic agents which lack the  typical movement disorder side-effects of standard antipsychotic agents.
Patent CA-1234953-A (CA)
Inventor: PIERCE WILLIAM
IPC: A61M60/432
Filed: 1985-03-14
Granted: 1988-04-12
Abstract: ABSTRACT OF THE DISCLOSURE A right ventricular assist device for assisting the circulation of the blood includes a smooth segmented poly-urethane sac having a single valveless passageway to provide a single inlet and outlet. A rigid ellipsoidal shell surrounds the sac and has a first opening for the single valveless passage-way and a second opening for pressurizing an interior portion of the shell. The shell has X, Y and R axes, wherein X and Y define an ellipse, and R defines a radius rotated to form the ellipsoid. A flexible diaphragm extends across the interior of the shell and divides the interior into two volumes; the sac and first opening in a first volume, and a second opening and a pressurizing chamber in a second volume.
Patent CA-1245460-A (CA)
Inventor: VICTOROVICH GRIGORI S
IPC: C22B15/02
Filed: 1985-03-20
Granted: 1988-11-29
Abstract: OXIDIZING PROCESS FOR SULFIDIC COPPER MATERIAL                               ABSTRACT           A process for autogenously smelting sulfidic copper material in the presence of a calcareous flux in which slag cleaning to provide metallic copper is employed.  Such metallic copper provided by slag cleaning is usefully employed as a coolant in the autogenous smelting operation.
Patent CA-1235479-A (CA)
Inventor: ARNOLDI DOUGLAS R
IPC: H04N1/04
Filed: 1985-04-18
Granted: 1988-04-19
Abstract: ABSTRACT OF THE DISCLOSURE     VARIABLE RESOLUTION SCANNING IN LINE SCAN            OPTICAL IMAGING SYSTEMS        Disclosed is an improvement to a facsimile system which enables the simulation of 240 and 300 DPI feedwise scan resolutions in a system designed to operate at 200 and 400 DPI feedwise scan resolutions.  The simulation is accomplished by feedwise advancing a document past a horizontal image scanner in defined sequences of half and full steps, half steps causing the document to be feedwise advanced by one four-hundredth of an inch (as in 400 DPI mode), full steps causing the document to be feedwise advanced by one two-hundredth of an inch (as in 200 DPI mode).  The scan resolution errors introduced by the simulation are non-cumulative since the system comes back into feedwise synchronization with true 240 and 300 DPI scan resolutions each time one of the defined three operation sequences is completed.         Also disclosed is a method of operating a document feeding system to approximate 240 and 300 DPI feedwise scan resolutions.
Patent CA-1220198-A (CA)
Inventor: LIU JOHN J
IPC: C07C211/19
Filed: 1985-05-21
Granted: 1987-04-07
Abstract: Title PROCESS FOR PREPARING RIMANTADINE    Abstract of the Disclosure A low temperature and pressure process for preparing rimantadine in high yields from 1-adamantyl methyl ketoxime is provided.  The process comprises contacting a solution of the ketoxime with hydrogen in the presence of a platinum on carbon catalyst at a low temperature and pressure, e.g., room temperature and a pressure of about 25-115 psia (170-790 KPa) are pre-ferred.
Patent CA-1240135-A (CA)
Inventor: PALMER RUSSELL N
IPC: D02J1/08
Filed: 1985-05-23
Granted: 1988-08-09
Abstract: TITLE    IMPROVED INTERLACED POLYESTER INDUSTRIAL YARNS                       ABSTRACT        An interlaced polyester yarn having an improved combination of low shrinkage properties and high tenacity.
Patent CA-1223462-A (CA)
Inventor: KING L TONY
IPC: B01F5/10
Filed: 1985-05-27
Granted: 1987-06-30
Abstract: -.theta.-Abstract Proportioning Device A device for maintaining a substantially uniform proportion between two or more liquids comprising a substantially cylindrically shaped tank and a liquid exit tube located at the bottom and approximately at the radial center of the tank.  The liquid exit tube is characterized as possessing a flared top end and one or more openings at its bottom end.  Means are also included within the cylindrically shaped tank for injecting two or more liquids into the tank which is connected to a pump or other means for maintaining circulation of the liquids.
Patent CA-1251666-A (CA)
Inventor: SUMMERLIN FREDERICK A
IPC: B21J15/00
Filed: 1985-06-21
Granted: 1989-03-28
Abstract: ABSTRACT     A pin for a pin and swaged tubular member type of fastener has a shank (14) provided along nearly all of its length with identical combination locking, breakneck and pulling grooves (20). Each groove is provided on at least one sidewall with a discontinuity, and in a preferred embodiment both sidewalls of each groove are provided with discontinuity in the form of a displacement across the width of the groove and along the length of the pin.  Alternatively the discon-tinuity may take the form of a change in  inclination of the groove wall, or a combination of both such displacement and change in inclination.
Patent CA-1228629-A (CA)
Inventor: BUTMAN THOMAS R JR
IPC: H02K3/48
Filed: 1985-09-13
Granted: 1987-10-27
Abstract: BEAM SUPPORT FOR BAR WINDINGS  OF LARGE ELECTRIC GENERATOR            Abstract of the Disclosure A stator of a large generator includes three potential, or "P" bars, disposed in slots atop the armature conductors in three of the stator slots. The "P" bars are part of a self-excitation system for producing DC excitation power for the rotating field of the generator.  At least the stator slots containing the "P" bars include a pair of dovetail slots spaced radially closer to the air gap than the dovetail slots in the remaining stator slots used for securing armature conductor bars in stator slots. The inner end of a beam is fitted into the dovetail slot over the "P" bar.  A yoke is secured over the outer end of the beam.  The yoke is secured to studs in space block extensions positioned adjacent the stator slot containing the "P" bar.  A ripple spring between the beam and the "P" bar applies a radial force to securely retain the "P" bar and the armature conductor bars in the slot.
Patent CA-1239482-A (CA)
Inventor: YAGI HIROSHI
IPC: H05K13/04
Filed: 1985-09-16
Granted: 1988-07-19
Abstract: PROCESS FOR MOUNTING CHIP TYPE CIRCUIT ELEMENTS ON PRINTED CIRCUIT BOARDS AND APPARATUS THEREFORE                 ABSTRACT OF THE DISCLOSURES     A process for mounting chip type circuit elements on printed circuit boards and an apparatus therefore are disclosed which is capable of eliminating necessity of arranging an X-Y table to simplify the structure of the apparatus and decreasing a time required to mount one circuit element on a printed circuit board.  Chip type circuit elements are sucked up by a plurality of suction pins arranged in each mounting head, transferred to a centering and turning section and then progressively mounted on a printed circuit board.  The mounting head is adapted to carry out the reciprocating movement in the X-direction plural times while it carries out the reciprocating movement in the Y-direction one time.
Patent CA-1254363-A (CA)
Inventor: HESSELMAR KARL G
IPC: F16B13/04
Filed: 1985-10-08
Granted: 1989-05-23
Abstract: Abstract of the Disclosure An expanding device adpated to be secured in a cavity, for instance in a cylindric pipe as an anchor.          A set of clamping jaws with suitably roughened surface, to engage the cylindric wall by the wedging action of an axially displaceable cone is operatively associated with a strong compression spring urging the cone to expand the jaws.  In order to maintain the cone and a position in which the jaws are relaxed and do not engage the interior of the tube, a soluable or otherwise environ-mentally disintegrated spacer is used.  When the spacer is in place, the device is inserted into a tube or the like.  The spacer is then exposed to an environment (for instance water , humidity or like) to eventually disintegrate or dissolve thus allowing displacement of the cone to expand the jaws into engagement with the cavity.  The spacer can be made of a variety of materials, for instance of saltstone dissolved by water and humidity after a period of time.
Patent CA-1264351-A (CA)
Inventor: PELONIS KOSTA
IPC: H05B37/02
Filed: 1985-11-07
Granted: 1990-01-09
Abstract: INVENTION: CONTROLLING LIGHTING ELEMENTS IN            RESPONSE TO AMBIENT LIGHT INTENSITY              INVENTOR: KOSTA PELONIS                ABSTRACT OF THE DISCLOSURE A two-terminal device is described which can be series connected with an incandescent or fluorescent lighting element to turn the lighting element on and off in response to ambient light intensity. The device includes a triac which conducts current through the lighting element, a diac connected to the trigger terminal of the triac to set a turn-on voltage threshold, and a capacitive voltage divider whose divider node is connected to the diac and which normally generates from the voltage across the triac a triggering signal that initiates triac conduction. A photoresistive element shunts one of the divider capacitors and suppresses triac triggering when ambient light intensity exceed a predetermined level. A neon light adjacent the photoresistive element and powered by the voltage difference across the triac prevents off-on oscillation in response to light received from the lighting element itself.
Patent CA-1268676-A (CA)
Inventor: GERHARDINGER DIETER
IPC: C09D183/04
Filed: 1985-11-22
Granted: 1990-05-08
Abstract: ANTICORROSION COATINGS FOR POROUS CONCRETE METAL REINFORCING STRUCTURES               Abstract of the Disclosure The present invention relates to a corrosion resistant coating for metal reinforcing structures that are used in porous concrete which comprises coating the metal reinforcing struc-tures with an organopolysiloxane elastomer obtained by cross-linking a diorganopolysiloxane-based composition by the conden-sation reaction or by the addition of Si-bonded hydrogen to an aliphatic carbon-carbon double bond, in which the composition contains a copolymer that is obtained via a free radical copoly-merization of styrene and a(meth)acrylic acid ester in the pre-sence of the diorganopolysiloxane.
Patent CA-1237778-A (CA)
Inventor: KUWABARA SHINICHIRO
IPC: G11B7/128
Filed: 1985-12-17
Granted: 1988-06-07
Abstract: ABSTRACT OF THE DISCLOSURE     An optical modulation system is disclosed, which comprises  an electro-optic modulator for  modulating  a laser  beam according to a modulation signal,  a  photo-electric  transducing  means for transducing the  output light of the electro-optic modulator into an  electrical signal,  a  control circuit capable of switching of  the polarity  of  a  voltage applied to  the  modulator,  an oscillator for supplying a reference oscillation  signal to  the  control  circuit,  and  a  phase  synchronizing detector  for synchronously detecting the output  signal of the photo-electric transducing means.
Patent CA-1268284-A (CA)
Inventor: KERR STUART R III
IPC: C09D11/10
Filed: 1985-12-30
Granted: 1990-04-24
Abstract: ABSTRACT OF THE DISCLOSURE           Radiation curable inks providing high print quality and durable low shrinkage ink films are prepared by dissolving in a reactive diluent a solid thermoplastic macromonomer of the formula R(Z)nX where R is a hydro-carbon group containing up to about 20 carbon atoms, Z is a vinyl aromatic monomer, n is a positive integer such that the number average molecular weight of Z is about 2,000 -50,000 and X is a polymerizable ethylenically unsatruated end group, and adding a colorant and, if required, a radia-tion responsive free radical initiator.
Patent CA-1265325-A (CA)
Inventor: CREMA STEFANO C
IPC: C09K8/592
Filed: 1986-01-17
Granted: 1990-02-06
Abstract: LIQUID FOAMING ADDITIVES USED IN THE STIMULATION OF OIL AND GAS WELLS            Abstract of the Disclosure This invention relates to a liquid foaming additive comprising (a)  a nonionic fluorochemical surfactant, and (b)  a nonionic heteric polyether surfactant having at least two active hydrogen atoms wherein components (a) and (b) are used in an effective amounts.     The foaming additives are used to foam lower alkyl alcohols which are injected into oil and gas wells to break up underground formations which trap the oil and gas.
Patent CA-1265676-A (CA)
Title: Toy building block
Inventor: CLAVET ALAIN
IPC: A63H33/06
Filed: 1986-01-27
Granted: 1990-02-13
Abstract: ABSTRACT OF THE DISCLOSURE         A toy building block includes a rectangular parallelpipedic body with a pair of dovetail-shaped slots extending transversely across the centre of four adjacent sides thereof, and a lug extending outwardly from the centre of the slots on two of the sides, the portion of the lug projecting outwardly beyond the plane of the side of the block also having a dovetail cross section for sliding engagement with the slots, and the central portion of each lug being bifurcated, the sides of the central portion flexing inwardly to permit insertion of the lug into a slot and bearing against the sides of the slot to releasably lock the lug in the slot.
Patent CA-1240373-A (CA)
Inventor: JONES KEITH E
IPC: H05K3/34
Filed: 1986-02-27
Granted: 1988-08-09
Abstract: ABSTRACT     A  surface  mountable  microwave  IC  package  uses printed  transmission  lines on a printed circuit board in  lieu  of  plumbing  between  milled  packages.    A backside  co-planar waveguide is connected to a topside microstrip   line   by  a  through-hole  in  a  carrier substrate.    To compensate for inductance added by the hole  and  transmission line ends, a gap is adjusted to provide   compensation  capacitance.    Hermeticity  is assured  by  brazing   lead frame over the through-hole and  using  a solder sealed lid.  The lid provides both hermeticity and shielding.
Patent CA-1256205-A (CA)
Inventor: SWARTZ JEROME
IPC: G06K7/00
Filed: 1986-02-28
Granted: 1989-06-20
Abstract: ABSTRACT OF THE DISCLOSURE           A portable laser diode scanning head, aimable at each symbol to be read, emits and receives non-readily-visible laser light, and is equipped with a trigger-actuated aiming light arrangement for visually locating and tracking each symbol.  A compact laser diode optical train and an optical folded path assembly, as well as an interchangeable component design are disclosed.
Patent CA-1273819-A (CA)
Inventor: COOPER DAVID E
IPC: G01N21/27
Filed: 1986-03-19
Granted: 1990-09-11
Abstract: METHOD AND APPARATUS FOR DOUBLE MODULATION SPECTROSCOPY     ABSTRACT OF THE DISCLOSURE A spectroscopic technique in which the sample under investigation is probed with a generally monochro-matic beam of light which has been modulated at two distinct modulation frequencies.  The double modulation produces a plurality of sidebands, and the two modula-tion frequencies are related to one another such that a selection of sidebands falls into two groups of closely spaced component sidebands.  A first group is disposed in frequency at the spectral feature of interest and serves to probe the spectral feature.  The other group is disposed in frequency remote from the feature and serves as a reference group.  Within each group the component sidebands are offset from one another by a characteristic offset frequency, which can be consid-erably less than the width of the spectral feature under investigation.  After interaction with the sample the doubly modulated beam is passed on to a photodetector, which in combination with appropriate signal processing apparatus detects a signal at the characteristic offset frequency representative of the spectral feature.